ASTROSAT CZTI

Data Quality Report

Orbit 08425

Creation date: 2024-06-27T15:32:36.412001
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_084T01_9000001188_08425cztM0_level2.evt modeM0/AS1A03_084T01_9000001188_08425cztM0_level2_quad_clean.evt
Size (bytes)109,483,20019,310,400
Size104.4 MB 18.4 MB
Events in quadrant A700,292121,783
Events in quadrant B712,712125,025
Events in quadrant C691,373121,914
Events in quadrant D1,116,362114,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028672
B028943
C028685
D042159

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1361493.600294%
B1360453.308824%
C1359433.164091%
D13591027.505519%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 2526 1361 0 0 0.00% 0.00%
B 2526 1361 1 1 0.04% 0.07%
C 2526 1361 0 0 0.00% 0.00%
D 2526 1361 48 48 1.90% 3.53%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 14 5413 134.21 180 175 39.0
A 14 111 1950 45.48 180 175 39.0
A 0 226 1648 37.74 180 175 39.0
B 0 214 8148 218.26 178 174 36.5
B 11 51 4096 107.35 178 174 36.5
B 12 111 3676 95.85 178 174 36.5
C 14 67 4240 95.67 175 176 42.5
C 13 61 1244 25.14 175 176 42.5
C 7 159 633 10.76 175 176 42.5
D 12 233 243832 5483.49 175 169 44.4
D 12 221 161696 3635.07 175 169 44.4
D 1 52 35436 793.66 175 169 44.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter